172683853 has 2 divisors, whose sum is σ = 172683854. Its totient is φ = 172683852.

The previous prime is 172683827. The next prime is 172683859. The reversal of 172683853 is 358386271.

172683853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95296644 + 77387209 = 9762^2 + 8797^2 .

It is an emirp because it is prime and its reverse (358386271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172683853 - 2¹³ = 172675661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172683859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86341926 + 86341927.

It is an arithmetic number, because the mean of its divisors is an integer number (86341927).

Almost surely, 2^172683853 is an apocalyptic number.

It is an amenable number.

172683853 is a deficient number, since it is larger than the sum of its proper divisors (1).

172683853 is an equidigital number, since it uses as much as digits as its factorization.

172683853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 43.

The square root of 172683853 is about 13140.9228366961. The cubic root of 172683853 is about 556.8658388646.

The spelling of 172683853 in words is "one hundred seventy-two million, six hundred eighty-three thousand, eight hundred fifty-three".